<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>设置多重背景图像</title>
<style type="text/css">
div{
	width:300px;
	height:300px;
	border:1px solid black;
	background-image:url(images/dog14.png),url(images/bg13.png),url(images/bg12.png);
	}
</style>
</head>
<body>
<div></div>
</body>
</html>